文章基本信息

标题：Experimental study of the efficiency of earth-to-air heat exchangers: Effect of the presence of external fans
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作者：Hijaz Ahmad ; Nasreddine Sakhri ; Younes Menni 等
期刊名称：Case Studies in Thermal Engineering
印刷版ISSN：2214-157X
电子版ISSN：2214-157X
出版年度：2021
卷号：28
页码：101461
语种：English
出版社：Elsevier B.V.
摘要：Renewable energy means a source of energy which is renewable and without or with less energy consumption as possible. In the case of the earth to air heat exchanger EAHE, we can find EAHE without fan or blower and systems with it according to prevailing winds. In the present paper, an experimental investigation of the possibilities and influences of using EAHE without a fan and directly after using a fan as a mechanism of air inducing and its impact inside a hot arid region full-scale test room. Temperature and relative humidity inside a test room made of poly-wood are measured. Results show that temperature inside the test room connected to EAHE without and with external fan reduced by 10 and 14 °C, respectively. For relative humidity, it doesn’t exceed 20 to 30 % for both systems, respectively. Obtained results confirmed that fan use allowed EAHE to better thermal performance, but hygrometry must be controlled. The use of EAHE with an external fan could improve thermal comfort inside hot arid region buildings and dwellings.